QSHC'25 is an affiliated event of ACNS'25. The workshop aims to explore the synergies between post-quantum and quantum cryptography. A leading example is the design of Hybrid Authenticated Key Exchange (HAKE) protocols that combine conventional, post-quantum, and quantum cryptography. While the topic is traditional, several new approaches have been proposed recently. The issue is pressing for the design of the future European Quantum Communication Infrastructure (EuroQCI) network that will span the European Union. Beyond HAKE, post-quantum cryptography has been used to build quantum protocols that demonstrate a quantum advantage (e.g., quantum oblivious transfer). This workshop will provide researchers, engineers, and practitioners a platform to discuss recent advancements. The objectives are: 

• Foster collaboration between post-quantum and quantum cryptographers. 

• Discuss recent advances and challenges. 

• Explore practical implementations and standardization efforts. 

• To provide a platform for presenting academic and applied work in the field. 

Submission Guidelines

Authors are invited to submit regular papers, which must adhere to the original LNCS format (see https://www.springer.com/gp/computer-science/lncs/conference-proceedings-guidelines), with a page limit of up to 18 pages (excluding references and clearly marked appendices). Submitted papers will be reviewed by the program committee for their suitability and relevance to the QSHC audience. We welcome SoK (Systematization of Knowledge) papers in particular. Post-proceedings will be published in Springer’s LNCS series.

Moreover, authors are invited to submit extended abstracts for contributed talks, which must adhere to the original LNCS format, with a page limit of up to 2 pages (excluding references). Submitted abstracts for contributed talks will be reviewed by the program committee for their suitability and relevance to the QSHC audience. For such contributed talks, authors may submit those based on works already submitted or recently published in other venues and works in progress intended for future submission elsewhere.

Please clearly indicate in your submission title if you are submitting a regular paper or a contributed talk. At least one author of each accepted submission is required to register for the workshop. Please check the ACNS registration website for further information: http://acns2025.fordaysec.de/registration. 

List of Topics

• Hybrid Authenticated Key Exchange (HAKE)
• Quantum-Safe Hybrid Cryptography, i.e., (symmetric/asymmetric) quantum-safe and quantum cryptography such as hybrid PQC/quantum cryptography protocols beyond HAKE
• Secure quantum computing 
• Quantum-resistant standardization 
• EuroQCI

Committees

Program Committee 

• Romain Alléaume (Télécom Paris, Institut Polytechnique de Paris, INRIA, France) 

• Christopher Battarbee (Sorbonne University, France) 

• Carlos Cid (Simula UiB, Norway, and Okinawa Institute of Science and Technology, Japan)

• Eleni Diamanti (CNRS, Sorbonne University, France)

• Benjamin Dowling (King's College London, UK)

• Alex Grilo (CNRS, Sorbonne University, France)

• Delaram Kahrobaei (CUNY QC, GC, University of York, NYU, USA) 

•  Elham Kashefi (NQCC, University of Edimburg, CNRS)

• Vincente Martin (CCS, U. Politécnica de Madrid, Spain)

• Sebastian Ramacher (AIT Austrian Institute of Technology, Austria)

• Timothy Spiller (University of York, UK)  

Organizing Committee

• Ludovic Perret (EPITA, Sorbonne University, France)  

• Christoph Striecks (AIT Austrian Institute of Technology, Austria)

Contact

All questions about submissions should be emailed to the organizing committee.